I'm curious how an initial diagnosis of a week turned into potentially 2+ months?Did he aggravate the injury?

He dove and made a catch and came out and said it hurt. Sounds like a sprained wrist, which is day-to-day, but they'll be cautious.

A few days later, after some swelling goes down, they're able to take a first full look into what it was and what was bothering him. They then determine that it wasn't just a sprained wrist. There is now pain in the flexor. The Twins official diagnosis is "[FONT=Arial]sprain of the pisotriquetral joint[/FONT]" and say it is a slow-healing injury and that Buxton would not return to baseball activities for awhile. There's no given timetable for this injury...

I don't know why anyone thought he wouldn't be out until May when that came out at the end of March.

Maybe it isn't a misdiagnosis but it certainly was an optimistic diagnosis. If the 2 options are that it is a minor sprain that can be played on after 10 days or it is a much more serious sprain that can't be played on for 1.5-2 months then give use the pessimistic diagnosis. The Twins have such a record of failure that they are not given the benefit of the doubt on things like this and should play this conservatively.